Harmonic Drive LLC | 247 Lynnfield St. Peabody, MA 01960 | 800-921-3332
Harmonic Drive and Harmonic Planetary are registered trademarks of Harmonic Drive LLC.


FB-2

It offers the designer high ratio, in-line mechanical power transmissions in extremely compact configurations. Pancake component sets are easier to use than conventional gearing. All that is required is suitable bearing support for the input and output shaft, and a means of fixing the circular spline against rotation.

  • Flat shape type
  • High positioning and rotational accuracies
  • Low axial width
  • Easily adapted to customer supplied assembly

How it works

FB component set consists of four elements:

  • Wave generator, an elliptical bearing assembly
  • Flexspline, a non-rigid ring with external teeth
  • Circular Spline, rigid internal gear
  • Dynamic Spline, rigid internal gear

Rotation of the Wave Generator imparts a rotating elliptical shape to the Flexspline causing progressive engagement of its external teeth with the internal teeth of the Circular Spline and the Dynamic Spline. The fixed Circular Spline has two more teeth than the Flexspline, thereby imparting relative rotation to the Flexspline at a reduction ratio corresponding to the difference in the number of teeth. With the same number of teeth, the Dynamic Spline rotates with and at the same speed as the Flexspline.

Compare Products Your current units are metric. Change to english.

Part Number Ratio Limit for Repeated Peak Torque Limit for Momentary Peak Torque
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Part Number Ratio Limit for Repeated Peak Torque Limit for Momentary Peak Torque
Compare Products Nm Nm
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FB-14-50-2-R 50 3.2 6.9
FB-14-88-2-R 88 7.8 15.7
FB-14-100-2-R 100 9.8 15.7
FB-14-110-2-R 110 9.8 15.7
FB-20-50-2-GR 50 18 34
FB-20-80-2-GR 80 21 35
FB-20-100-2-GR 100 26 47
FB-20-128-2-GR 128 33 58
FB-20-160-2-GR 160 38 59
FB-25-50-2-GR 50 30 54
FB-25-80-2-GR 80 39 70
FB-25-100-2-GR 100 52 91
FB-25-120-2-GR 120 61 94
FB-25-160-2-GR 160 76 86
FB-32-50-2-GR 50 60 108
FB-32-78-2-GR 78 75 127
FB-32-100-2-GR 100 98 176
FB-32-131-2-GR 131 137 235
FB-32-157-2-GR 157 157 235
FB-40-50-2-GR 50 118 216
FB-40-80-2-GR 80 147 265
FB-40-100-2-GR 100 186 343
FB-40-128-2-GR 128 235 372
FB-40-160-2-GR 160 284 353
FB-50-80-2-GR 80 265 480
FB-50-100-2-GR 100 253 627
FB-50-120-2-GR 120 421 706
FB-50-160-2-GR 160 510 666

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